Firecracking?

[Shooter1971]

I thnk my bbl is done, been missing shots that felt good. Bought a cheap borescope and think I am seeing some cracking? 6mm Creedmoor with about 1200 rounds. Thoughts?

 

[trevj]

Looks like it's done. If not firecracking, then some crappy QC after the barrel was rifled.

Enough barrel to set it back to stretch things out, or is it gonna be a new one?

 

[Alpheus]

If you dont mind, can you take some photos of the first couple inches at the muzzle?

 

[Shooter1971]

Start of the throat

Looks like it's done. If not firecracking, then some crappy QC after the barrel was rifled.

Enough barrel to set it back to stretch things out, or is it gonna be a new one?

 

[Shooter1971]

From the muzzle

 

[Shooter1971]

chucked a new bbl up, no way to get all the cracking out and still thread

 

[trevj]

Start of the throat

That looks like a great piece to make a really good cutaway 'demonstration' piece out of, both to show folks the chamber, as well as the effects of firecracking.

I have a .17 Remington barrel that a friend had removed from his rifle, that looks like sandpaper when you sight through it, for the first inch or so past the leade. Needless to say, his accuracy had dropped off rather hard.

 

[porpoise]

Looks like a lot of fire cracking for not much throat wear to me. My 300 Weatherby is way worse and shoots well. On the other hand I have bores with much farther advanced throats and little fire cracking. I have a Lyman borecam but don’t know how to post pictures from it

 

[220]

Is that a stainless steel barrel?

 

[220]

From pics you can't really tell if cracking or carbon build up, muzzle is fine

 

[Shooter1971]

Yes ss

 

[IvoB]

My Tikka T3x barrel with just b'out 4000 rounds looks a lot worse than yours - it's as smooth as crocodile skin - have lots of firecracking etc the first 8 inches or so of the barrel - it still shoots darn good so I do not worry about it

 

[Shooter1971]

Interesting...seems some good results can still be had. Maybe it's the nut behind the wheel that is the issue

 

[bunny]

What make of barrel is it ?

 

[porpoise]

The photos aren’t that good but it doesn’t look like much wear at the throat although a lot of heat. I have heard if your firecracking starts to break up your accuracy will suddenly go out the window but have not seen this in my barrels.

 

[Shooter1971]

What make of barrel is it ?

It's a premium brand